<template>
	<el-form size="small">
		<el-form-item>
			<el-radio v-model="radioValue" :label="1"> 月，允许的通配符[, - * /] </el-radio>
		</el-form-item>

		<el-form-item>
			<el-radio v-model="radioValue" :label="2">
				周期从
				<el-input-number v-model="cycle01" :min="1" :max="11" /> -
				<el-input-number v-model="cycle02" :min="cycle01 ? cycle01 + 1 : 2" :max="12" /> 月
			</el-radio>
		</el-form-item>

		<el-form-item>
			<el-radio v-model="radioValue" :label="3">
				从
				<el-input-number v-model="average01" :min="1" :max="11" /> 月开始，每
				<el-input-number v-model="average02" :min="1" :max="12 - average01 || 0" />
				月月执行一次
			</el-radio>
		</el-form-item>

		<el-form-item>
			<el-radio v-model="radioValue" :label="4">
				指定
				<el-select
					clearable
					v-model="checkboxList"
					placeholder="可多选"
					multiple
					style="width: 100%">
					<el-option v-for="item in 12" :key="item" :value="item">{{ item }}</el-option>
				</el-select>
			</el-radio>
		</el-form-item>
	</el-form>
</template>
<script lang="ts">
export default {
	data() {
		return {
			radioValue: 1,
			cycle01: 1,
			cycle02: 2,
			average01: 1,
			average02: 1,
			checkboxList: [],
			checkNum: this.check
		};
	},
	name: "crontab-month",
	props: ["check", "cron"],
	methods: {
		// 单选按钮值变化时
		radioChange() {
			switch (this.radioValue) {
				case 1:
					this.$emit("update", "month", "*");
					break;
				case 2:
					this.$emit("update", "month", this.cycleTotal);
					break;
				case 3:
					this.$emit("update", "month", this.averageTotal);
					break;
				case 4:
					this.$emit("update", "month", this.checkboxString);
					break;
			}
		},
		// 周期两个值变化时
		cycleChange() {
			if (this.radioValue == "2") {
				this.$emit("update", "month", this.cycleTotal);
			}
		},
		// 平均两个值变化时
		averageChange() {
			if (this.radioValue == "3") {
				this.$emit("update", "month", this.averageTotal);
			}
		},
		// checkbox值变化时
		checkboxChange() {
			if (this.radioValue == "4") {
				this.$emit("update", "month", this.checkboxString);
			}
		}
	},
	watch: {
		radioValue: "radioChange",
		cycleTotal: "cycleChange",
		averageTotal: "averageChange",
		checkboxString: "checkboxChange"
	},
	computed: {
		// 计算两个周期值
		cycleTotal: function () {
			const cycle01 = this.checkNum(this.cycle01, 1, 11);
			const cycle02 = this.checkNum(this.cycle02, cycle01 ? cycle01 + 1 : 2, 12);
			return cycle01 + "-" + cycle02;
		},
		// 计算平均用到的值
		averageTotal: function () {
			const average01 = this.checkNum(this.average01, 1, 11);
			const average02 = this.checkNum(this.average02, 1, 12 - average01 || 0);
			return average01 + "/" + average02;
		},
		// 计算勾选的checkbox值合集
		checkboxString: function () {
			let str = this.checkboxList.join();
			return str == "" ? "*" : str;
		}
	}
};
</script>
